Very nice and Julian! The R way (which is not necessarily better) would be to save an e.g. BibTex formatted CITATION file in the package dir, and then just something like readlines(joinpath(Pkg.dir("MyPackage"), "CITATION")), parse it into a Dict, and then have a keyword argument for human-readable format or all the big citation formats. It would have the advantage of working without loading a package. But I think I prefer @oxinabox solution as it feels more “Julian”.